Results 51 to 60 of about 330 (99)

Global Existence and Stability for Neutral Functional Evolution Equations with State-Dependent Delay

open access: yesNonautonomous Dynamical Systems, 2014
In this paper we prove the global existence and attractivity of mild solutions for neutral semilinear evolution equations with state-dependent delay in a Banach space.
Baliki Abdessalam, Benchohra Mouffak
doaj   +1 more source

On mixed boundary value problem of impulsive semilinear evolution equations of fractional order

open access: yes, 2012
This article studies the existence and uniqueness of solutions for impulsive semi-linear evolution equations of fractional order α ∈ (1, 2] with mixed boundary conditions. Some standard fixed point theorems are applied to prove the main results.
Lihong Zhang   +2 more
semanticscholar   +1 more source

Semilinear Volterra integrodifferential equations with nonlocal initial conditions

open access: yesAbstract and Applied Analysis, Volume 4, Issue 2, Page 127-139, 1999., 1999
We establish the global existence of mild solutions to a class of nonlocal Cauchy problems associated with semilinear Volterra integrodifferential equations in a Banach space.
Sergiu Aizicovici, Mark Mckibben
wiley   +1 more source

On the stability of a functional equation deriving from additive and quadratic functions

open access: yes, 2012
In this article, we investigate the Hyers-Ulam stability of the following functional equation f(x+2y)+f(x-2y)=f(x+y)+f(x-y)+3f(2y)-6f(y) on quasi-β-normed spaces.2000 MR Subject Classification: 45J05; 34k30; 34K20.
Wang Liguang, Li Jing
semanticscholar   +1 more source

Existence and Controllability for Second‐Order Functional Differential Equations With Infinite Delay and Random Effects

open access: yesInternational Journal of Differential Equations, Volume 2024, Issue 1, 2024.
This paper investigates the existence and controllability of second‐order functional differential equations with infinite delay, incorporating random operators. The existence of solutions is established using the Schauder fixed point theorem, ensuring that solutions exist under specified conditions.
Srinivasan Madhumitha   +5 more
wiley   +1 more source

Almost periodic mild solutions of a class of partial functional differential equations

open access: yesAbstract and Applied Analysis, Volume 3, Issue 3-4, Page 425-436, 1998., 1998
We study the existence of almost periodic mild solutions of a class of partial functional differential equations via semilinear almost periodic abstract functional differential equations of the form To this end, we first associate with every almost periodic semilinear equation a nonlinear semigroup in the space of almost periodic functions.
Bernd Aulbach, Nguyen Van Minh
wiley   +1 more source

Functional differential equations with nonlocal initial conditions

open access: yesInternational Journal of Stochastic Analysis, Volume 10, Issue 2, Page 145-156, 1997., 1996
We study the existence, uniqueness, asymptotic properties, and continuous dependence upon data of solutions to a class of abstract nonlocal Cauchy problems. The approach we use is based on the theory of m‐accretive operators and related evolution equations in Banach spaces.
Sergiu Aizicovici, Yun Gao
wiley   +1 more source

Stepanov-like pseudo-almost automorphic solutions of infinite class in the alpha-norm under the light of measure theory

open access: yesNonautonomous Dynamical Systems
In this article, we study weighted Stepanov-like pseudo-almost automorphic functions with infinite delay using measure theory. We present a new concept of weighted ergodic functions, which is more general than the classical one.
Mbainadji Djendode   +2 more
doaj   +1 more source

Stability of stationary and periodic solutions equations in Banach space

open access: yesInternational Journal of Stochastic Analysis, Volume 10, Issue 3, Page 249-255, 1997., 1997
Linear difference and differential equations with operator coefficients and random stationary (periodic) input are considered. Conditions are presented for the mean stability of stationary (periodic) solutions under small perturbation of the coefficients.
A. Ya. Dorogovtsev
wiley   +1 more source

Existence of positive periodic solutions for fourth-order nonlinear neutral differential equations with variable delay

open access: yesAdvances in Nonlinear Analysis, 2014
In this article we study the existence of positive periodic solutions for a fourth-order nonlinear neutral differential equation with variable delay.
Ardjouni Abdelouaheb   +2 more
doaj   +1 more source

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